Lie on your back and lift your legs.

Lie flat on the bed, lift your legs and put them down, and feel the tension in your abdomen like pedaling a bicycle.

Do 30 times on each leg and do 2 groups.

Supine butterfly

Lie flat on the bed with your upper body fixed, your waist attached to the bed, your legs bent, your feet together, and your legs folded and unfolded.

Don't care too much. Do it 30 times, two groups

Hip bridge

As the name implies, lie flat on the bed with your head, shoulders and feet as the support points, with your feet slightly wider than your shoulders and your waist close to the ground.

Lift the waist and hips, hold them for 30 seconds, and then fall. Do five groups back and forth.

stretching

Stretch your legs for 2 minutes and abdomen for 30 seconds every day.